-
80
Claudius Ptolemy is born
In Alexandria, Egypt. He contributed evidence to the geocentric view which incorporated epicycles. He also created tables that allowed for predictions about the movements of the universe. -
165
Claudius Ptolemy Dies
Also in Alexandria, Egypt. He was influenced by his schooling as well as the advanced library in Alexandria. -
Feb 19, 1473
Nicolaus Copernicus is born
In Torun, Poland -
1492
Copernicus questions theories
Copernicus began to question the geocentric views proposed by Ptolemy and Aristotle, tow of his biggest influences. -
1532
Copernicus speaks out
Copernicus' complete and detailed manuscrit on the heliocentric view is complete. -
May 24, 1543
Nicolaus Copernicus Dies
In Frombork, Poland. -
Feb 15, 1564
Galileo Galilei is born
In Pisa, Italy. -
Galileo writes to Kepler
Galileo wrote a letter to Johannes Kepler that he agreed with the heliocentric view. -
Galileo observes the moon and Jupiter
With his improved version of the telescope Galileo was able to make never before seen observations of the universe. -
Galileo states agreement with Copernicus
Galileo stated that he agreed with Copernicus' observations and views of the universe. Copernicus was one of his biggest influences. -
Galileo Galilei Dies
In Florence, Italy while under house arrest. -
Isaac newton is Born
In Woolsthorpe Manor House, united Kingdom -
Newton develops the theories of gravitation
-
Newton presents his three laws of motion
-
Isaac Newton Dies
Throughout his career Newton was influenced by his schooling and upbringing. He was also influenced by Galileo who provided evidence for Newton's first law of motion. -
Dimitri Mendeleev is born
im Tobolsk, Siberia (Russia) -
Marie Curie is born
In Warsaw, Poland. -
Mendeleev creates the periodic table of elements
It came to him on a train and his idea of organization was influenced by the card game solitaire -
Discovers the elements polonium and radium
Came up with the term radioactive. -
Curie discovers alpha and beta rays
Working with two other scientists she distinguished two different kinds of particles from radioactive substances. -
Curie sees radioactive radium
Important in understanding the structure of an atom. -
Dimitri Mendeleev dies
In St. Petersburg, Russia. Of the flu. -
Marie Curie dies
In a sanatorium in France.